<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CSS初实践</title>
    <link rel="stylesheet" href="CSS在这里\css简介.css">
   <style>
    p{
        color:yellow;
        font-size: 20;
    }
   </style>
</head>
<body>
    <h1 style="color: blue;">一级标题</h1>
    <h2>二级标题有所不同</h2>
    <p>内容来了，猜猜是啥</p>
</body>
</html>